I want to update the data every frame, how do I do it?

Here’s my incorrect code:

public override void _Process(double delta)
{
    GD.Print(Stats.question - 1);
    questionnum = Stats.question - 1;
    correct_text.Text = Stats.correct_options[questionnum];
    incorrect_text_1.Text = Stats.incorrect_options_1[questionnum];
    incorrect_text_2.Text = Stats.incorrect_options_2[questionnum];
    incorrect_text_3.Text = Stats.incorrect_options_3[questionnum];
    question_text.Text = Stats.question_text[questionnum];
}